[theshleps]

The n in Sandy is suspicious (good ones look more like a U than an N) as is the f in Koufax. The S in Sandy is also more typical of an earlier signature but all in all not a bad job at doing Koufax. I'd give him a B+
I own 100+ Koufax (probably a few are fake) from all stages of his career- many IP from his days at Albuquerque, one from last year spring training, some from the 1960's when I was a kid. There are some good forgeries out there for sure
Also own 10+ Koufax he did at a charity event in Surprise AZ (signed all of them in front of me) but all mine were from that one moment in time so haven't kept up.